- Typical linewidth <10 MHz
- Ideal source for Raman applications
- Up to 500mW @ 785nm
- Fiber coupling available
- ASE suppression > 40dB
The XTRA II provides three top features from one single unit: Gaussian beam proﬁle, single-frequency operation and high output power. Incoherent ASE is suppressed by more than 40 dB, turning the XTRA II into the ideal choice for demanding Raman applications depending on a high signal-to-noise ratio. The integration of a high quality optical isolator as a standard feature ensures long term rock solid performance of the XTRA II.
Wavelength 785 nm Power (free-beam) Up to 500 mW Long term power drift (10 h) < 5 % Spectral linewidth (typ.) < 10 MHz Spatial mode TEM00, M² < 1.7
- Additional Information
Fiber Option – FiberDock XTRA II
To provide full flexibility for OEM integrators, single-mode fiber-coupling is available on demand. Contrary to competing multimode lasers, the XTRA II achieves 250 mW output from a single-mode or even polarization-maintaining fiber. The fiber add-on consists of TOPTICA's patented FiberDock and an additional 35 dB optical isolator. Thus, highest coupling efficiency combined with best wavelength stability is guaranteed.
Fiber output collimator – FiberOut
Some applications demand a fiber-coupled laser and beam collimation at the end of a fiber. To provide a comprehensive solution, the FiberOut turns the divergent beam at the fiber end into a collimated beam again (0.5 mm - 4 mm @ 1/e² CA: 4.8 mm). FC/APC connectors are standard, others can be accommodated.
- Article: Ulrich Eismann Direct and frequency-converted diode lasers provide all wavelengths for holography, Laser Focus World (2018)